April 26th 2009
AA
Big Idea: Negative numbers help us to model many real world situations.
Essential Question: How do I multiply and divide integers?
Notes from Class:
positive x positive= positive
positive x negetive=negetive
negetive x negetive=positive
negetive x positive= negetive A)1Complete the multiplication sentence -5x6= ?
The product is -30. A)2 Write 2 division sentences that are equivalent to the multiplication sentence in part 1.
2 division sentences are= 30/6=5, 30/5=6 B1) Complete the multiplication sentence -8x-4=
B1) 32
B)2 write 2 division sentences that are equivalent to the multiplication sentence you found in part 1.
B)2 2 division sentences that are equivalent to the sentence above are= 32/-4=-8. 32/-8=-4
C) Write a division sentence that solves each problem.
1) ?x12= -132
1) -132/12=-11 2) -8x?=-56
2) -56/-8=7 3) ?x-4=132
3) 132/-4=-33 4) 5.2x?=-8.84
4) 8.84/5.2=1.7
D) Write division or multiplication sentences to solves the problems.
1) ?/-3=-8
1) -8x-3=24 2) 91/?=7
2) 91/-7=-13 3) ?/11=-17
3)11x-17= -187 4)-19.95/?=9.5
4)19.95/9.5=2.1
4.4 Follow-Up
1) Find each quotient
a)-121 /11=?
a)-11 b)121/-11=?
b) -11 c)-96/-4=?
c)24 d)96/4=?
d) 24
2a) Find 18/3=
2a) 6 2b) how does your answer in part a help you to find -18/3, 18/-3, and -18/-3?
2b) it helps me find -18/3=-6 as -6x3 is -18, 18/-3= -6 as -6x-3= 18, and -18/-3=6 as -3x6=-18
AA
Big Idea: Negative numbers help us to model many real world situations.
Essential Question: How do I multiply and divide integers?
Notes from Class:
positive x positive= positive
positive x negetive=negetive
negetive x negetive=positive
negetive x positive= negetive
A)1Complete the multiplication sentence -5x6= ?
The product is -30.
A)2 Write 2 division sentences that are equivalent to the multiplication sentence in part 1.
2 division sentences are= 30/6=5, 30/5=6
B1) Complete the multiplication sentence -8x-4=
B1) 32
B)2 write 2 division sentences that are equivalent to the multiplication sentence you found in part 1.
B)2 2 division sentences that are equivalent to the sentence above are= 32/-4=-8. 32/-8=-4
C) Write a division sentence that solves each problem.
1) ?x12= -132
1) -132/12=-11
2) -8x?=-56
2) -56/-8=7
3) ?x-4=132
3) 132/-4=-33
4) 5.2x?=-8.84
4) 8.84/5.2=1.7
D) Write division or multiplication sentences to solves the problems.
1) ?/-3=-8
1) -8x-3=24
2) 91/?=7
2) 91/-7=-13
3) ?/11=-17
3)11x-17= -187
4)-19.95/?=9.5
4)19.95/9.5=2.1
4.4 Follow-Up
1) Find each quotient
a)-121 /11=?
a)-11
b)121/-11=?
b) -11
c)-96/-4=?
c)24
d)96/4=?
d) 24
2a) Find 18/3=
2a) 6
2b) how does your answer in part a help you to find -18/3, 18/-3, and -18/-3?
2b) it helps me find -18/3=-6 as -6x3 is -18, 18/-3= -6 as -6x-3= 18, and -18/-3=6 as -3x6=-18